/**
 * @template T
 * @param {boolean} [nonReactive=false] - use a non-reactive placeholder to allow multiple selection and keep context shallow
 * @returns {SingleSelectionContext<T>}
 */
export function createSingleSelectionContext<T>(nonReactive?: boolean): SingleSelectionContext<T>;
/**
 * @template T
 * @param {(value: T|null) => void} callback
 * @returns {(open: boolean, v?: T) => SingleSelectionContext<T>}
 */
export function useSingleSelection<T>(callback: (value: T | null) => void): (open: boolean, v?: T) => SingleSelectionContext<T>;
export type SingleSelectionContext<T> = {
    value?: (T | null) | undefined;
};